I know I can already do this, but it would override they're files for various sounds and would play on any server.
I want to be able to have it, so that on my server, sounds such as when a sentry gun spots you and the second one (sentry_spot, sentry_spot_client) are the "!" from Metal Gear Solid, but do not wish to make it that for every server after they join mine.
I'm sure a (temporary) sound replacement plugin should be somewhat easy to make and hook.
Who is up for it? I think it would be widely used and is a great idea.